/*
 * This file is part of LangMan.
 *
 * LangMan is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * LangMan is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with LangMan.  If not, see <http://www.gnu.org/licenses/>.
 */

package langman.gui.translation;

import javafx.scene.control.TableCell;
import javafx.scene.control.TextField;
import langman.business.data.model.Translation;

import java.util.Objects;

public class TranslationEditingCell extends TableCell<Translation, String> {
    private final TextField textField = new TextField();

    private Translation oldProperty;

    public TranslationEditingCell() {
        setGraphic(textField);
    }

    @Override
    protected void updateItem(String item, boolean isEmpty) {
        super.updateItem(item, isEmpty);

        textField.disableProperty().bind(getTableColumn().editableProperty());

        if (isEmpty) {
            unbindOld();
        } else {
            setGraphic(textField);

            Translation newProperty = getTableView().getItems().get(getTableRow().getIndex());

            if (!Objects.equals(oldProperty, newProperty)) {
                if (oldProperty != null) {
                    textField.textProperty().unbindBidirectional(oldProperty.translationProperty());
                }

                if (newProperty != null) {
                    textField.textProperty().bindBidirectional(newProperty.translationProperty());
                    oldProperty = newProperty;
                }
            } else if (newProperty == null) {
                oldProperty = null;
            }
        }
    }

    private void unbindOld() {
        if (oldProperty != null) {
            textField.textProperty().unbindBidirectional(oldProperty.translationProperty());
            oldProperty = null;
        }
        setGraphic(null);
    }

}
